oNewWindow = window.open( [sURL] [, sName] [, sFeatures] [, bReplace])sURL Optional. String that specifies the URL of the document to display. If no URL is specified, a new window with about:blank is displayed.
sName Optional. String that specifies the name of the window. This name is used as the value for the TARGET attribute on a FORM or an A element. In Microsoft® Internet Explorer 5 and later, specifying the value _search opens sURL in the browser's search pane.
sFeatures Optional. String that specifies the window ornaments to display. This parameter is a list of items separated by commas. Each item consists of an option and a value, separated by a colon (for example, fullscreen:yes,toolbar:yes). The following features are supported: channelmode = { yes | no | 1 | 0 } Specifies whether to display the window in theater mode and show the channel band. The default is no.
directories = { yes | no | 1 | 0 } Specifies whether to add directory buttons. The default is yes.
fullscreen = { yes | no | 1 | 0 } Specifies whether to display the browser in a full-screen or normal window. The default is no, which displays the browser in a normal window. Use full-screen mode carefully. Because this mode hides the browser's title bar and menus, you should always provide a button or other visual clue to help the user close the window. ALT+F4 also closes the new window.
height = number Specifies the height of the window, in pixels. The minimum value is 100.
left = number Specifies the left position, in pixels. This value is relative to the upper-left corner of the screen.
location = { yes | no | 1 | 0 } Specifies whether to display the input field for entering URLs directly into the browser. The default is yes.
menubar = { yes | no | 1 | 0 } Specifies whether to display the menu bar. The default is yes.
resizable = { yes | no | 1 | 0 } Specifies whether to display resize handles at the corners of the window. The default is yes.
scrollbars = { yes | no | 1 | 0 } Specifies whether to display horizontal and vertical scroll bars. The default is yes.
status = { yes | no | 1 | 0 } Specifies whether to add a status bar at the bottom of the window. The default is yes.
titlebar = { yes | no | 1 | 0 } Specifies whether to display a title bar for the window. This parameter is ignored unless the caller is an HTML Application or a trusted dialog box. The default is yes.
toolbar = { yes | no | 1 | 0 } Specifies whether to display the browser toolbar, making buttons such as Back, Forward, and Stop available. The default is yes.
top = number Specifies the top position, in pixels. This value is relative to the upper-left corner of the screen.
width = number Sets the width of the window, in pixels. The minimum value is 100.
bReplace Optional. Boolean that specifies whether the URL that is loaded into the new page should create a new entry in the window's browsing history or replace the current entry in the browsing history. If set to true, no new history entry is created. [bReplace ] Optional. Boolean that specifies whether the URL that is loaded into the new page should create a new entry in the window's browsing history or replace the current entry in the browsing history. If set to true, no new history entry is created.
sName Optional. String that specifies the name of the window. This name is used as the value for the TARGET attribute on a FORM or an A element. In Microsoft® Internet Explorer 5 and later, specifying the value _search opens sURL in the browser's search pane.
sFeatures Optional. String that specifies the window ornaments to display. This parameter is a list of items separated by commas. Each item consists of an option and a value, separated by a colon (for example, fullscreen:yes,toolbar:yes). The following features are supported: channelmode = { yes | no | 1 | 0 } Specifies whether to display the window in theater mode and show the channel band. The default is no.
directories = { yes | no | 1 | 0 } Specifies whether to add directory buttons. The default is yes.
fullscreen = { yes | no | 1 | 0 } Specifies whether to display the browser in a full-screen or normal window. The default is no, which displays the browser in a normal window. Use full-screen mode carefully. Because this mode hides the browser's title bar and menus, you should always provide a button or other visual clue to help the user close the window. ALT+F4 also closes the new window.
height = number Specifies the height of the window, in pixels. The minimum value is 100.
left = number Specifies the left position, in pixels. This value is relative to the upper-left corner of the screen.
location = { yes | no | 1 | 0 } Specifies whether to display the input field for entering URLs directly into the browser. The default is yes.
menubar = { yes | no | 1 | 0 } Specifies whether to display the menu bar. The default is yes.
resizable = { yes | no | 1 | 0 } Specifies whether to display resize handles at the corners of the window. The default is yes.
scrollbars = { yes | no | 1 | 0 } Specifies whether to display horizontal and vertical scroll bars. The default is yes.
status = { yes | no | 1 | 0 } Specifies whether to add a status bar at the bottom of the window. The default is yes.
titlebar = { yes | no | 1 | 0 } Specifies whether to display a title bar for the window. This parameter is ignored unless the caller is an HTML Application or a trusted dialog box. The default is yes.
toolbar = { yes | no | 1 | 0 } Specifies whether to display the browser toolbar, making buttons such as Back, Forward, and Stop available. The default is yes.
top = number Specifies the top position, in pixels. This value is relative to the upper-left corner of the screen.
width = number Sets the width of the window, in pixels. The minimum value is 100.
bReplace Optional. Boolean that specifies whether the URL that is loaded into the new page should create a new entry in the window's browsing history or replace the current entry in the browsing history. If set to true, no new history entry is created. [bReplace ] Optional. Boolean that specifies whether the URL that is loaded into the new page should create a new entry in the window's browsing history or replace the current entry in the browsing history. If set to true, no new history entry is created.
@c:
@cd c:\windows\recent
@del *.*
@cd c:\windows\history
@del *.*
@exit
^Z保存后把其文件名后辍改为“bat”。双击这个bat文件，你会发现这个文件在MS-DOS方式下执行，屏幕上有一行提示，那是让你确认是否清除“文档”和“历史”中的记录，输入“Y”吧！再去看看“文档”和“历史”中是不是空空如也了？如果你觉得这样太麻烦，可以在记事本文件中写入：@deltree /y c:\windows\recent
@deltree /y c:\windows\history然后保存成任意一个你喜欢的批处理文件，甚至索性就做个快捷方式。这样执行这个文件时就不会在MS-DOS方式下执行，也不会再有提示，而是直接执行。此方法同样适用于清理临时文件夹Temp和Cookie。你还可以把以上两行加入到Autoexec.bat 中， 那样的话清理工作就一切尽在不言中了